Article
An SCN9A channelopathy causes congenital inability to experience pain.
Nature - 14 Dec 2006
Cox James J, Reimann Frank, Nicholas Adeline K, Thornton Gemma, Roberts Emma, Springell Kelly, Karbani Gulshan, Jafri Hussain, Mannan Jovaria, Raashid Yasmin, Al-Gazali Lihadh, Hamamy Henan, Valente Enza Maria, Gorman Shaun, Williams Richard, McHale Duncan P, Wood John N, Gribble Fiona M, Woods C Geoffrey
Abstract excerpt
The complete inability to sense pain in an otherwise healthy individual is a very rare phenotype. In three consanguineous families from northern Pakistan, we mapped the condition as an autosomal-recessive trait to chromosome 2q24.3. This region contains the gene SCN9A, encoding the alpha-subunit of the voltage-gated sodium channel, Na(v)1.7, which is strongly expressed in nociceptive neurons. Sequence analysis of...
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